Re: [Qemu-devel] [Bug 899140] Re: Problem with Linux Kernel Traffic Control

[Stefan Hajnoczi]

On Thu, Dec 15, 2011 at 4:09 PM, Stefan Hajnoczi <address@hidden> wrote:
> On Thu, Dec 15, 2011 at 3:03 PM, Vincent Autefage
> <address@hidden> wrote:
>> Ok,
>>
>> So the e1000.c and the e1000_hw.h have absolutely no difference between
>> the original and the ubuntu version...
>> The only differences witch refers to the *Intel e1000* in the wall
>> sources is this one :
>>
>>
>> diff -ru qemu//hw/pc_piix.c qemu-kvm-0.14.0+noroms//hw/pc_piix.c
>> --- qemu//hw/pc_piix.c  2011-12-15 15:37:28.539290000 +0100
>> +++ qemu-kvm-0.14.0+noroms//hw/pc_piix.c        2011-02-22
>> 14:34:38.000000000 +0100
>>
>> @@ -123,7 +141,7 @@
>>          if (!pci_enabled || (nd->model && strcmp(nd->model,
>> "ne2k_isa") == 0))
>>              pc_init_ne2k_isa(nd);
>>          else
>> -            pci_nic_init_nofail(nd, "e1000", NULL);
>> +            pci_nic_init_nofail(nd, "rtl8139", NULL);
>>      }
>>
>>      if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
>
> That looks like it is only changing the default NIC from e1000 to rtl8139.

Perhaps you can stop Ubuntu from applying its patches on top of
vanilla QEMU but still use the same build process.  In other words,
try building the vanilla QEMU source but using Ubuntu's method (not
sure if you are using dpkg build tools here).  If it turns out the
binary does not have the bug then we know it's an environmental issue
like a ./configure difference or similar.

Stefan